Run id: 160200

Main.cc: In function 'int main()':
Main.cc:6:24: error: 'strlen' was not declared in this scope
  for(int i=0;i='a'&&a[i]<='z'||a[i]=='_'||a[i]>='A'&&a[i]<='Z'||a[i]>='0'&&a[i]<='9')){
                 ^
Main.cc:11:50: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   if(!(a[i]>='a'&&a[i]<='z'||a[i]=='_'||a[i]>='A'&&a[i]<='Z'||a[i]>='0'&&a[i]<='9')){
                                                  ^
Main.cc:11:72: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   if(!(a[i]>='a'&&a[i]<='z'||a[i]=='_'||a[i]>='A'&&a[i]<='Z'||a[i]>='0'&&a[i]<='9')){
                                                                        ^